Aerodynamic Analysis of Dimple effect on Airfoil
V Soundharya1, Anil B A2, Venu Gopal S3, Gowreesh S S4
1V Soundharya, Department of Mechanical Engineering, JSS Academy of Technical Education Bangalore/ Visvesvaraya Technological University, Bengaluru (Karnataka), India.
2Anil B A, Department of Mechanical Engineering, JSS Academy of Technical Education Bangalore/ Visvesvaraya Technological University, Bengaluru (Karnataka), India.
3Venu Gopal S, Department of Mechanical Engineering, JSS Academy of Technical Education Bangalore, Visvesvaraya Technological University, Bengaluru (Karnataka), India.
4Dr. Gowreesh S S, Associate Professor, Department of Mechanical Engineering, JSS Academy of Technical Education, Bangalore, Visvesvaraya Technological University, Bengaluru (Karnataka), India.
Manuscript received on 15 April 2016 | Revised Manuscript received on 25 April 2016 | Manuscript Published on 30 April 2016 | PP: 207-211 | Volume-5 Issue-4, April 2016 | Retrieval Number: D4544045416/16©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The main objective of aircraft aerodynamics is to enhance the aerodynamic characteristics and maneuverability of the aircraft. This enhancement includes the reduction in drag. At present different kinds of surface modifications like Vortex Generators commonly known as Dimples are being studied to improve the maneuverability of the aircraft. Present paper attempts to evaluate the effects of such artificial modifications on the surface of a NACA 4412 Airfoil and analyze the impact on its aerodynamic performance. An external flow study was performed using commercially available software. Simulations for external flow configuration with and without dimples were carried out and analyzed in detail. The resulting pressure drop and drag were observed. The objective is to clarify whether or not dimples cause reduction of the skin friction drag and if it would provide better lift.
Keywords: Airfoil, Lift, Drag, Dimple, Pressure Drop.
Scope of the Article: Predictive Analysis